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  2. List of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/List_of_trigonometric...

    Trigonometric functions and their reciprocals on the unit circle. All of the right-angled triangles are similar, i.e. the ratios between their corresponding sides are the same.

  3. File:Unit-circle sin cos tan cot exsec excsc versin cvs.svg

    en.wikipedia.org/wiki/File:Unit-circle_sin_cos...

    English: A unit circle with sine (sin), cosine (cos), tangent (tan), cotangent (cot), versine (versin), coversine (cvs), exsecant (exsec), excosecant (excsc) and (indirectly) also secant (sec), cosecant (csc) as well as chord (crd) and arc labeled as trigonometric functions of angle theta. It is designed as alternative construction to "Circle ...

  4. Mnemonics in trigonometry - Wikipedia

    en.wikipedia.org/wiki/Mnemonics_in_trigonometry

    Write the functions without "co" on the three left outer vertices (from top to bottom: sine, tangent, secant) Write the co-functions on the corresponding three right outer vertices (cosine, cotangent, cosecant) Starting at any vertex of the resulting hexagon: The starting vertex equals one over the opposite vertex.

  5. File:Unit-circle sin cos tan cot exsec excsc versin vercos ...

    en.wikipedia.org/wiki/File:Unit-circle_sin_cos...

    Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.

  6. Trigonometry - Wikipedia

    en.wikipedia.org/wiki/Trigonometry

    The cosine, cotangent, and cosecant are so named because they are respectively the sine, tangent, and secant of the complementary angle abbreviated to "co-". [ 32 ] With these functions, one can answer virtually all questions about arbitrary triangles by using the law of sines and the law of cosines . [ 33 ]

  7. Trigonometric functions - Wikipedia

    en.wikipedia.org/wiki/Trigonometric_functions

    Basis of trigonometry: if two right triangles have equal acute angles, they are similar, so their corresponding side lengths are proportional.. In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) [1] are real functions which relate an angle of a right-angled triangle to ratios of two side lengths.

  8. Mortgage and refinance rates for Oct. 30, 2024: Average 30 ...

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    Editor's note: Rates shown are as of Wednesday, October 30, 2024, at 6:15 a.m. ET. APYs and promotional rates for some products can vary by region and are subject to change.

  9. File:Cosecant.svg - Wikipedia

    en.wikipedia.org/wiki/File:Cosecant.svg

    Cosecant.svg - a nice plot of the cosecant function: Image title: Cosecant-function y = csc(x) from Wikimedia Commons plot-range: -2pi to 2pi plotted with cubic bezier-curves in several intervalls The bezier-controll-points are calculated to give a very accurate result. Accuracy is about 1^-6 units.

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